<?php
/**
 +----------------------------------------------------------
 * 列表扩展搜索字段
 +----------------------------------------------------------
 * Author: ExBOY
 * Time: 2014-05-04 $ 20160603 更新 wangjianjun
 * [Ecos!] (C)2003-2014 Shopex Inc.
 +----------------------------------------------------------
 */
class invoice_finder_extend_filter_order{
    
    function get_extend_colums(){
        
    }
    
}